B-Line Eaton series open racks, Hinges provide access to back of equipment, Steel, Flat black powder coat, 12-24 panel mounting holes, 79 mounting sp

The B-Line Eaton series open frame rack, model SB708237918FB, gives you 79 mounting spaces on its rails. In rack terms that is 79 single mounting spaces, so it accommodates a very tall stack of panels and equipment over a frame height of 78-3/16 inches. If your equipment list is spec'd in rack units, count the panel heights against that 79-space rail rather than against the outside height.

Plan for 78-3/16 inches of height, 23 inches of width and 18 inches of depth on the frame itself. The 18 inch depth is shallow for a rack, which suits a wiring closet or a shallow telecom room, but deep switches and servers will overhang it. Also allow swing clearance behind or beside the rack, because the hinged frame is meant to pivot so you can reach the back of the equipment.

The rails are punched with 12-24 panel mounting holes, so you mount gear with 12-24 rack screws, not 10-32 and not square-hole cage nuts. If your patch panels and shelves arrived with 10-32 hardware, order 12-24 screws and washers separately.

An open frame rack is the right call in a secured room where you want maximum airflow and both-side access to cabling; the hinged design on this B-Line frame is there specifically so you can swing it and work behind the equipment. Go with an enclosed cabinet instead when the room is public or shared and you need locked doors and dust protection. An open frame gives you no security barrier at all.

Yes, it is UL Listed. That matters on institutional and government jobs where the spec calls for listed equipment racks in a telecom or electrical room.

The frame is steel with a flat black powder coat finish and weighs 45 pounds bare. That is light enough for two people to stand up in a closet, but an open frame at nearly 79 mounting spaces is top-heavy once loaded, so it should be floor-anchored or wall-braced as part of the install.

What you get is the steel open frame with its 12-24 punched mounting rails and the hinged frame for rear access. Mounting screws, shelves, cable management, vertical wire managers and power strips are all separate line items, so add them to the order if the job needs them.

The finish is flat black powder coat, which is the standard non-reflective black used on most telecom racks, so it reads consistently alongside existing black frames. Gloss levels can differ slightly between manufacturers, so expect a match in color rather than a perfect match in sheen.